Nakanojin Castle


AidaNakanojinjou (1).JPG


For more information see Aida Kokuzousan Castle.

Visit Notes

Nakanojinjō is part of the Aida-jōkangun, a complex or network of fortified spaces on and beneath Mount Kokuzō. It is centrally located between several other sites, with Akiyoshi-toride, a fort site, on the ridge to the east, and another formerly fortified ridge to the southwest. The route to the north goes to the topmost ridge, with Aida-Kokuzōsanjō in the east, and Utsutsujō to the northwest. I visited Nakanojinjō after climbing down from Kokuzōsanjō (also called Minenojō). A spur of fortified ridge is located beneath Nakanojinjō, and I also went there too, climbing down the mountain that way.

Nakanojinjō, meaning ‘Middle Camp Castle’, itself consists of earthworks and masonry. The layout is of a central bailey complex with some sub-baileys below. There is a large horikiri (trench) sunk into the ridge at the rear of the main bailey with tall dorui (earthen ramparts). To the prow and aft of the main bailey ishigaki (stone-piled ramparts) remains can be seen. A spur of terraced mini-baileys goes down the ridge south, but another spur goes to another fort site in the southwest.

See also Akiyoshi Fort and Utsutsu Castle. For the southwest ridge site see Kokuzousannanseioneno Castle (Aida).

  • Ishigaki and dorui
  • Main bailey seen from dorui
  • Castle marker and dorui in background
  • Dobashi (earthen bridge) with trenches either side
  • Climbing Trench / Tatebori
  • Map: Nakanojin to the right
  • Map of site
  • Kirigishi on terraced bailey

Castle Profile
English Name Nakanojin Castle
Japanese Name 中ノ陣城
Founder Aida Clan
Year Founded Kamakura Period
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Artifacts Horikiri, Dorui, Ishigaki
Features trenches, stone walls
Visitor Information
Access Bus from Matsumoto Station
Visitor Information 24/7 free; mountain
Time Required 40 minutes
Location Matsumoto, Nagano Prefecture
Coordinates 36° 21' 52.88" N, 138° 0' 21.46" E
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Added to Jcastle 2023
Contributor ART
Admin Year Visited Viewer Contributed
Friends of JCastle
Shiro Meguri
Shiro to Kosenjō

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